190. A wire segment $MN$ on conductors $U$ of rail $MN$ moves with constant velocity $V$ in time interval $\Delta t$ from position $MN$ to position $M'N'$. If the induced EMF is 0.15 V and the velocity of the wire segment is how many meters per second, and the direction of the induced current in the wire is: [Figure: A rectangular rail with magnetic field $\vec{B}$ directed out of the page ($\odot$), $B = 0.12\,\text{T}$, rail width $25\,\text{cm}$, wire segment moving from $MN$ to $M'N'$] (1) 5 from N toward M (2) 5 from M toward N (3) 7.5 from N toward M (4) 7.5 from M toward N \begin{flushright} Calculation Space \end{flushright} www.riazisara.ir %% Page 18 Physics121-APage 17
\textbf{190.} A wire segment $MN$ on conductors $U$ of rail $MN$ moves with constant velocity $V$ in time interval $\Delta t$ from position $MN$ to position $M'N'$. If the induced EMF is 0.15 V and the velocity of the wire segment is how many meters per second, and the direction of the induced current in the wire is:
\textit{[Figure: A rectangular rail with magnetic field $\vec{B}$ directed out of the page ($\odot$), $B = 0.12\,\text{T}$, rail width $25\,\text{cm}$, wire segment moving from $MN$ to $M'N'$]}
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(1) 5 from N toward M \\
(2) 5 from M toward N \\
(3) 7.5 from N toward M \\
(4) 7.5 from M toward N
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